The brain and spinal cord are part of what system?

1.) respiratory system

2.) Central nervous system

3.) all of the answer choices are correct

4.) peripheral nervous system

How are igneous rocks classified? A.) by cooling rate B.) nBy color C.) by the degree of foliation D.) by texture and composition

What is step 1 for fusion reaction

What can be said about the structure of ice and water

In an experiment the group that is the standard against which results are compared

Which of the following is true about the Sun? A. The Sun is one of many stars in the Milky Way Galaxy. B. The Sun is the only star in the Milky Way Galaxy. C. The Sun is the only star in the Universe. D.

When enough experimental data support a hypothesis, the hypothesis becomes a what

Which part of the central nervous system is used to serve as the main communications link between the body and the brain

Examine the following diagram. Place the labeled layers in order from oldest to youngest.

What is the function of lateral meristem

Roots or plant growth making cracks in concrete what is the Description of location